Please reply to the below post and answer the question:

While your post gives us a great overview of various privacy laws and their implications, one could argue that the effectiveness of these laws is still debatable. For instance, while COPPA looks to protect children's privacy online, its reliance on age restrictions might not be enough to prevent unfair practices. Also, the voluntary nature of information sharing under CISPA raises questions about its ability to truly protect user privacy.

On another note, while homomorphic encryption sounds promising, its practical implementation and scalability may create challenges, especially in large-scale systems. How do we make sure emerging technologies like homomorphic encryption don't inadvertently create new privacy risks or vulnerabilities?